Article | January 19, 2017

Keeping Your Cool When Storing Purified Protein

Source: Bio-Rad Laboratories, Inc.
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By Terri Thompson
First published December 14, 2015 on

The study of proteins and their function is central to understanding biology, but separating and purifying single proteins from complex mixtures is hard work. After investing the time to purify your target protein using various chromatography methods, losing your protein integrity because of improper storage would be devastating. Good storage conditions are particularly important if you need your protein for several downstream studies. You might need to store your preparation for an extended period of time, and some experiments require that the protein retain its original structure, binding affinity or enzymatic activity. Here we discuss some quick and simple suggestions relating to concentration, additives, sample size and storage temperature to consider when storing your protein for future use.